title: Enhanced performance of the dye-sensitized solar cells with phenothiazine-based dyes containing double D-A branches.
abstract: Double donor-acceptor (D-A) branched dyes (DBD) with a phenothiazine unit as electron donor and a 2-cyanoacrylic acid unit as electron acceptor were synthesized and used as sensitizers for solar cells (DSSCs). The conversion efficiency of the DSSCs amounts up to 4.22% (2.91% for the single D-A branched dye) under AM 1.5 G irradiation. The results show that the performance of DSSCs can be effectively enhanced by the cooperation of two donor-acceptor containing branches in one molecule of the dyes.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. drcao@scut.edu.cn
authors.forename: Derong
authors.initials: D
authors.lastname: Cao
authors.forename: Jinan
authors.initials: J
authors.lastname: Peng
authors.forename: Yanping
authors.initials: Y
authors.lastname: Hong
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Fang
authors.forename: Lingyun
authors.initials: L
authors.lastname: Wang
authors.forename: Herbert
authors.initials: H
authors.lastname: Meier